Here are some commercials that aired during an episode of St. Elsewhere:

1. 13 News at 6:00pm & 11:00pm General promo (partial)
2. 13 News Update promo bumper
3. Ford Motor Company
4. Kentucky Fried Chicken
5. St. Elsewhere bumper
6. Prego Al Fresco Sauce
7. Sylvania Soft White Light Bulbs
8. General Electric
9. Bob Evans Sausage
10. GE Miser Light Bulbs
11. Quaker Life Cereal
12. Renault (George C. Scott?)
13. 'St. Elsewhere' will be right back!!
14. Hunter NBC promo
15. Trading Place NBC promo
16. 13 News' NewsTrack (w/First Federal Savings of Toledo ad)
17. The Celeste Years
18. Donahue TV 13 promo bumper
19. (same as #5)
20. Dodge Dakota
21. L'Orient Food from Le Menu
22. Trendar
23. Cheers/Night Court/Hill Street Blues NBC promos
24. Miami Vice & L.A. Law NBC promos
25. General Electric Sponsor & commercial
26. Crave Cat Food
27. 227/The Golden Girls/Amen NBC promos
28. St. Elsewhere end credits
29. MTM Enterprises, Inc. (1986)

A very special thanks goes to Henry Hanson for lending me this video footage!
All credit and courtesy of this content goes to him!